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Mechanical Engineering Machine Design Difficulty: Medium

In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress is The number of centers in a crank driven slider crank mechanism is In a steam engine, the earlier cut-off with a simple slide valve may be obtained by increasing the steam lap and the angle of advance of the eccentric but keeping constant the travel and lead of the valve, this method will In centreless grinding, the surface speed of regulating wheel is When cut-off ratio is ________; the efficiency of Diesel cycle approaches to Otto cycle efficiency